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Cheap STL to PHL Flights

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

St. Louis to Philadelphia route information

Origin Airport Lambert-St. Louis Intl.
Destination Airport Philadelphia Intl.
Airlines Serving American Airlines, Delta, Frontier Airlines, Sun Country Airlines, United
Flight Price $222
Distance 811 mi

Atlantic City

$16,509.17

Trenton

$332.40

Cheap STL to PHL Flights

  • How long is the flight from STL to PHL?

    This direct flight will whoosh you away to your destination in two hours via Southwest Airlines. If you catch the 11:45 AM CDT departure, you'll arrive at 2:45 PM EDT. You'll have plenty of time to freshen up or grab a quick lunch before your upcoming appointment (don't forget, there is a time change of one hour).
  • Can I change the date of my flight?

    Yes, you can change your departure date. If you want to save some funds in doing so, the lowest-cost day to fly in October is Saturday. You might think you're missing out leaving a day early, but we think of it as you just adding those savings towards a future getaway. A penny saved is a vacation earned.
  • Do some days of the week have more flight times than others?

    With 17 total flight time options, Sunday provides the most flexibility from STL to PHL. The day with the fewest number of options is Thursday with 14 different times.
  • How long does the average person visit Philadelphia?

    Of course, you are not an average person, but if you were, you'd stay roughly four days.
  • What is the cheapest airline flying from Saint Louis to Philadelphia?

    Frontier Airlines is the leader in keeping prices down for their passengers over the next three months. Fares are being booked at just $214, which is a steal when compared to the more expensive bookings of $1,181.
  • Which airline has the least delays from Saint Louis to Philadelphia?

    Booking with Delta Air Lines means you will arrive to Philadelphia about the time you were supposed to. In fact, this timely airline has a 100% on-time average. It never hurts to be prepared. If you should choose this airline, be sure to track the flight status to stay on top of the departure time.
  • What is the cheapest day to fly to Philadelphia?

    Sep 24th has bookings (as of Sep 16th) as cheap as $214. That comes in 41% below the average price for this route. Saving now gives you more money to spend on your trip.

Missouri to Philadelphia Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Missouri to Philadelphia will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Philadelphia.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with STL to PHL flights that won’t make your bank account wince. Ready to temporarily leave behind Missouri for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to PHL with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Package Disclaimer

*Savings amount equal to 100% when flight + hotel are booked together. Prices based on searches conducted by fellow shoppers within the past 24 hours. There is no guarantee that these prices will be in effect at the time of your search. Vacation package savings are based on comparison to prices on Expedia.com of the same components booked separately. Savings vary based on origin/destination, length of trip, stay dates and travel partners, and aren't available on all packages.